diff options
Diffstat (limited to 'test/CodeGenCXX/static-init-emscripten.cpp')
| -rw-r--r-- | test/CodeGenCXX/static-init-emscripten.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGenCXX/static-init-emscripten.cpp b/test/CodeGenCXX/static-init-emscripten.cpp new file mode 100644 index 0000000000..b9d0271ae1 --- /dev/null +++ b/test/CodeGenCXX/static-init-emscripten.cpp @@ -0,0 +1,14 @@ +// RUN: %clang_cc1 -emit-llvm -triple=asmjs-unknown-emscripten -o - %s | FileCheck %s + +int f(); + +// Test that Emscripten uses the Itanium/x86 ABI in which the static +// variable's guard variable is tested via "load i8 and compare with +// zero" rather than the ARM ABI which uses "load i32 and test the +// bottom bit". +void g() { + static int a = f(); +} +// CHECK: load atomic i8* bitcast (i64* @_ZGVZ1gvE1a to i8*) acquire +// CHECK-NEXT: %guard.uninitialized = icmp eq i8 %0, 0 +// CHECK-NEXT: br i1 %guard.uninitialized, label %init.check, label %init.end |